Home / 11,388.23-17,076.86-6,456.55

Finding the Fourth Proportional to 11,388.23, 17,076.86 and 6,456.55

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Solution

The fourth proportional to 11,388.23, 17,076.86 and 6,456.55 is: 9,681.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.23 : 17,076.86 = 6,456.55 : x
  2. Step 2: Convert to fraction form
    11,388.23/17,076.86 = 6,456.55/x
  3. Step 3: Cross multiply
    11,388.23x = 17,076.86 × 6,456.55
  4. Step 4: Simplify right side
    11,388.23x = 110,257,573.88
  5. Step 5: Solve for x
    x = 110,257,573.88/11,388.23
  6. Step 6: Final answer
    x = 9,681.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.